aslcache.c revision 1.1.1.10 
1/******************************************************************************
2 *
3 * Module Name: aslcache -- Local cache support for iASL
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2023, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions, and the following disclaimer,
16 *    without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 *    substantially similar to the "NO WARRANTY" disclaimer below
19 *    ("Disclaimer") and any redistribution must be conditioned upon
20 *    including a substantially similar Disclaimer requirement for further
21 *    binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 *    of any contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44#include "aslcompiler.h"
45
46/*
47 * Local caches. The caches are fully deleted after the compilation/disassembly
48 * of each individual input file. Thus, individual allocations from the cache
49 * memory do not need to be freed or even released back into the cache.
50 *
51 * See aslallocate.c for standard heap allocations.
52 */
53
54
55/*******************************************************************************
56 *
57 * FUNCTION:    UtLocalCacheCalloc
58 *
59 * PARAMETERS:  Length              - Size of buffer requested
60 *
61 * RETURN:      Pointer to the buffer. Aborts compiler on allocation failure
62 *
63 * DESCRIPTION: Allocate a string buffer. Bypass the local
64 *              dynamic memory manager for performance reasons (This has a
65 *              major impact on the speed of the compiler.)
66 *
67 ******************************************************************************/
68
69char *
70UtLocalCacheCalloc (
71    UINT32                  Length)
72{
73    char                    *Buffer;
74    ASL_CACHE_INFO          *Cache;
75    UINT32                  CacheSize = ASL_STRING_CACHE_SIZE;
76
77
78#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
79    /* Used for objects other than strings, so keep allocations aligned */
80    Length = ACPI_ROUND_UP_TO_NATIVE_WORD (Length);
81#endif
82
83    if (Length > CacheSize)
84    {
85        CacheSize = Length;
86
87        if (AslGbl_StringCacheList)
88        {
89            Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize);
90
91            /* Link new cache buffer just following head of list */
92
93            Cache->Next = AslGbl_StringCacheList->Next;
94            AslGbl_StringCacheList->Next = Cache;
95
96            /* Leave cache management pointers alone as they pertain to head */
97
98            AslGbl_StringCount++;
99            AslGbl_StringSize += Length;
100
101            return (Cache->Buffer);
102        }
103    }
104
105    if ((AslGbl_StringCacheNext + Length) >= AslGbl_StringCacheLast)
106    {
107        /* Allocate a new buffer */
108
109        Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize);
110
111        /* Link new cache buffer to head of list */
112
113        Cache->Next = AslGbl_StringCacheList;
114        AslGbl_StringCacheList = Cache;
115
116        /* Setup cache management pointers */
117
118        AslGbl_StringCacheNext = Cache->Buffer;
119        AslGbl_StringCacheLast = AslGbl_StringCacheNext + CacheSize;
120    }
121
122    AslGbl_StringCount++;
123    AslGbl_StringSize += Length;
124
125    Buffer = AslGbl_StringCacheNext;
126    AslGbl_StringCacheNext += Length;
127    return (Buffer);
128}
129
130
131/*******************************************************************************
132 *
133 * FUNCTION:    UtParseOpCacheCalloc
134 *
135 * PARAMETERS:  None
136 *
137 * RETURN:      New parse op. Aborts on allocation failure
138 *
139 * DESCRIPTION: Allocate a new parse op for the parse tree. Bypass the local
140 *              dynamic memory manager for performance reasons (This has a
141 *              major impact on the speed of the compiler.)
142 *
143 ******************************************************************************/
144
145ACPI_PARSE_OBJECT *
146UtParseOpCacheCalloc (
147    void)
148{
149    ASL_CACHE_INFO          *Cache;
150
151
152    if (AslGbl_ParseOpCacheNext >= AslGbl_ParseOpCacheLast)
153    {
154        /* Allocate a new buffer */
155
156        Cache = UtLocalCalloc (sizeof (Cache->Next) +
157            (sizeof (ACPI_PARSE_OBJECT) * ASL_PARSEOP_CACHE_SIZE));
158
159        /* Link new cache buffer to head of list */
160
161        Cache->Next = AslGbl_ParseOpCacheList;
162        AslGbl_ParseOpCacheList = Cache;
163
164        /* Setup cache management pointers */
165
166        AslGbl_ParseOpCacheNext = ACPI_CAST_PTR (ACPI_PARSE_OBJECT, Cache->Buffer);
167        AslGbl_ParseOpCacheLast = AslGbl_ParseOpCacheNext + ASL_PARSEOP_CACHE_SIZE;
168    }
169
170    AslGbl_ParseOpCount++;
171    return (AslGbl_ParseOpCacheNext++);
172}
173
174
175/*******************************************************************************
176 *
177 * FUNCTION:    UtSubtableCacheCalloc - Data Table compiler
178 *
179 * PARAMETERS:  None
180 *
181 * RETURN:      Pointer to the buffer. Aborts on allocation failure
182 *
183 * DESCRIPTION: Allocate a subtable object buffer. Bypass the local
184 *              dynamic memory manager for performance reasons (This has a
185 *              major impact on the speed of the compiler.)
186 *
187 ******************************************************************************/
188
189DT_SUBTABLE *
190UtSubtableCacheCalloc (
191    void)
192{
193    ASL_CACHE_INFO          *Cache;
194
195
196    if (AslGbl_SubtableCacheNext >= AslGbl_SubtableCacheLast)
197    {
198        /* Allocate a new buffer */
199
200        Cache = UtLocalCalloc (sizeof (Cache->Next) +
201            (sizeof (DT_SUBTABLE) * ASL_SUBTABLE_CACHE_SIZE));
202
203        /* Link new cache buffer to head of list */
204
205        Cache->Next = AslGbl_SubtableCacheList;
206        AslGbl_SubtableCacheList = Cache;
207
208        /* Setup cache management pointers */
209
210        AslGbl_SubtableCacheNext = ACPI_CAST_PTR (DT_SUBTABLE, Cache->Buffer);
211        AslGbl_SubtableCacheLast = AslGbl_SubtableCacheNext + ASL_SUBTABLE_CACHE_SIZE;
212    }
213
214    AslGbl_SubtableCount++;
215    return (AslGbl_SubtableCacheNext++);
216}
217
218
219/*******************************************************************************
220 *
221 * FUNCTION:    UtFieldCacheCalloc - Data Table compiler
222 *
223 * PARAMETERS:  None
224 *
225 * RETURN:      Pointer to the buffer. Aborts on allocation failure
226 *
227 * DESCRIPTION: Allocate a field object buffer. Bypass the local
228 *              dynamic memory manager for performance reasons (This has a
229 *              major impact on the speed of the compiler.)
230 *
231 ******************************************************************************/
232
233DT_FIELD *
234UtFieldCacheCalloc (
235    void)
236{
237    ASL_CACHE_INFO          *Cache;
238
239
240    if (AslGbl_FieldCacheNext >= AslGbl_FieldCacheLast)
241    {
242        /* Allocate a new buffer */
243
244        Cache = UtLocalCalloc (sizeof (Cache->Next) +
245            (sizeof (DT_FIELD) * ASL_FIELD_CACHE_SIZE));
246
247        /* Link new cache buffer to head of list */
248
249        Cache->Next = AslGbl_FieldCacheList;
250        AslGbl_FieldCacheList = Cache;
251
252        /* Setup cache management pointers */
253
254        AslGbl_FieldCacheNext = ACPI_CAST_PTR (DT_FIELD, Cache->Buffer);
255        AslGbl_FieldCacheLast =AslGbl_FieldCacheNext + ASL_FIELD_CACHE_SIZE;
256    }
257
258    AslGbl_FieldCount++;
259    return (AslGbl_FieldCacheNext++);
260}
261
262
263/*******************************************************************************
264 *
265 * FUNCTION:    UtDeleteLocalCaches
266 *
267 * PARAMETERS:  None
268 *
269 * RETURN:      None
270 *
271 * DESCRIPTION: Delete all local cache buffer blocks
272 *
273 ******************************************************************************/
274
275void
276UtDeleteLocalCaches (
277    void)
278{
279    UINT32                  BufferCount;
280    ASL_CACHE_INFO          *Next;
281
282
283    /*
284     * Generic cache, arbitrary size allocations
285     */
286    BufferCount = 0;
287    while (AslGbl_StringCacheList)
288    {
289        Next = AslGbl_StringCacheList->Next;
290        ACPI_FREE (AslGbl_StringCacheList);
291        AslGbl_StringCacheList = Next;
292        BufferCount++;
293    }
294
295    DbgPrint (ASL_DEBUG_OUTPUT,
296        "%u Strings (%u bytes), Buffer size: %u bytes, %u Buffers\n",
297        AslGbl_StringCount, AslGbl_StringSize, ASL_STRING_CACHE_SIZE, BufferCount);
298
299    /* Reset cache globals */
300
301    AslGbl_StringSize = 0;
302    AslGbl_StringCount = 0;
303    AslGbl_StringCacheNext = NULL;
304    AslGbl_StringCacheLast = NULL;
305
306    /*
307     * Parse Op cache
308     */
309    BufferCount = 0;
310    while (AslGbl_ParseOpCacheList)
311    {
312        Next = AslGbl_ParseOpCacheList->Next;
313        ACPI_FREE (AslGbl_ParseOpCacheList);
314        AslGbl_ParseOpCacheList = Next;
315        BufferCount++;
316    }
317
318    DbgPrint (ASL_DEBUG_OUTPUT,
319        "%u ParseOps, Buffer size: %u ops (%u bytes), %u Buffers\n",
320        AslGbl_ParseOpCount, ASL_PARSEOP_CACHE_SIZE,
321        ((UINT32) sizeof (ACPI_PARSE_OBJECT) * ASL_PARSEOP_CACHE_SIZE), BufferCount);
322
323    /* Reset cache globals */
324
325    AslGbl_ParseOpCount = 0;
326    AslGbl_ParseOpCacheNext = NULL;
327    AslGbl_ParseOpCacheLast = NULL;
328    AslGbl_ParseTreeRoot = NULL;
329
330    /*
331     * Table Compiler - Field cache
332     */
333    BufferCount = 0;
334    while (AslGbl_FieldCacheList)
335    {
336        Next = AslGbl_FieldCacheList->Next;
337        ACPI_FREE (AslGbl_FieldCacheList);
338        AslGbl_FieldCacheList = Next;
339        BufferCount++;
340    }
341
342    DbgPrint (ASL_DEBUG_OUTPUT,
343        "%u Fields, Buffer size: %u fields (%u bytes), %u Buffers\n",
344        AslGbl_FieldCount, ASL_FIELD_CACHE_SIZE,
345        ((UINT32) sizeof (DT_FIELD) * ASL_FIELD_CACHE_SIZE), BufferCount);
346
347    /* Reset cache globals */
348
349    AslGbl_FieldCount = 0;
350    AslGbl_FieldCacheNext = NULL;
351    AslGbl_FieldCacheLast = NULL;
352
353    /*
354     * Table Compiler - Subtable cache
355     */
356    BufferCount = 0;
357    while (AslGbl_SubtableCacheList)
358    {
359        Next = AslGbl_SubtableCacheList->Next;
360        ACPI_FREE (AslGbl_SubtableCacheList);
361        AslGbl_SubtableCacheList = Next;
362        BufferCount++;
363    }
364
365    DbgPrint (ASL_DEBUG_OUTPUT,
366        "%u Subtables, Buffer size: %u subtables (%u bytes), %u Buffers\n",
367        AslGbl_SubtableCount, ASL_SUBTABLE_CACHE_SIZE,
368        ((UINT32) sizeof (DT_SUBTABLE) * ASL_SUBTABLE_CACHE_SIZE), BufferCount);
369
370    /* Reset cache globals */
371
372    AslGbl_SubtableCount = 0;
373    AslGbl_SubtableCacheNext = NULL;
374    AslGbl_SubtableCacheLast = NULL;
375}
376